I just got my Model 70 a few weeks ago and just got to shoot it a few days ago. After a short break in period (shoot once, clean once for 10 shots), I pulled off three shot group. It was a straight line to the right. I thought it was an obvious stock contact problem and pulled the action out of the stock. After I broke the glue from the receiver (is this common among gun manufacturers?) I didn't see anything of obvious obstruction. My question is this: Should I slowly sand bit by bit from each side of the barrel channel, left, right, and bottom, until I can slide a dollar bill down the channel or should I just go ahead and have it glass bedded? I am going to try the old card shim under the front of the receiver trick and see if this solves it but I honestly think that it will need to be free floated anyway. What do you guys think? Thanks for your opinions gentlemen.

Uplander 12